Technical Proposal :

1. Coil Charging Car:

Structure Type:

The single head uncoiler is responsible for securely holding the steel coil in a fixed position and gradually feeding the strip in a controlled manner toward the subsequent production line equipment. This device locks the coil firmly in place by applying uniform internal pressure and regulates the strip’s uncoiling speed through a brake or motor, ensuring synchronization with the line’s requirements to prevent sudden tension changes, strip loosening, or misalignment. Unlike double head uncoilers, which allow simultaneous loading of two coils and quick coil changes, the single head uncoiler features a central mandrel and accommodates only one coil in the production process at a time. This design is highly suitable, cost-effective, and easy to operate for lines that require fewer coil changes or operate at medium production capacities.
2. Shear And Butt Welder:

The shearing and butt-welding system ensures precise and orderly joining of two steel sheets. After welding, the joint seam is leveled and smoothed, and the supplied strips are prepared for the accumulator.

The maximum weldable thickness of this system is 6mm, allowing for the joining of mediumthickness steel sheets. The welding speed of 500mm/min provides an optimal balance between weld quality and production efficiency, enabling continuous and uniform welds in a short time.

The Submerged Arc Welding (SAW) process is an automated welding method where an electric arc is established between a continuously fed wire electrode and the workpiece, under a protective layer of flux powder. This flux prevents the molten metal from contacting the air, stabilizes the arc, and reduces spatter, thereby improving weld quality. The concentrated heat of the arc ensures deep and uniform penetration of the weld metal in the butt joint. Key parameters such as current, voltage, wire feed speed, and welding travel speed are precisely controlled to achieve an optimal metallurgical structure and high mechanical properties.
3. Horizontal Accumulator:

Accumulator: 1 set

• Drive method: Feeding Motor → Universal joints → Carbide-faced

cylindrical gear decelerator with lubrication oil pump → Open gear →

Basket.

• Feeding Motor: YCT250-4A, 18.5 kW

• Driven Motor: YCT250-4B, 30 kW with a speed regulating system using

an INVERTER.

• Basket Diameter (OD): Ø6500 mm

• Run-out Speed: Max 200M/min

• Equipped with safety fence for motors and accumulator loop
4. Forming Machine

5. Roller Stands with Carriage System for Front Horizontal Stands in Forming

and Sizing Sections (easy change):
This system includes two sets of roller stands mounted on movable carriages (or trolleys):

• One set for the Forming section

• One set for the Sizing section

These stands are installed on rails or wheeled carriages, allowing for smooth and controlled

movement of the roller assemblies.

Advantages:

1. Reduced roller changing time and increased production capacity:

With carriage-mounted roller stands, there’s no need for time-consuming manualdisassembly.

The entire roller unit can be shifted easily, minimizing machine downtime and enhancing throughput.

2. Prevention of bearing damage and extended equipment lifespan:

In conventional setups, manually pulling out the roller frame can place excessive stress

on bearings, leading to premature wear or failure.

The carriage system enables smooth and uniform movement, significantly reducing stress

and potential damage to mechanical components.

3. Improved alignment and accuracy:

Carriage-mounted rollers can be positioned with high precision, ensuring better

alignment during tube forming and sizing processes.

4. Enhanced maintenance and safety:

Simplified access to the rollers facilitates maintenance and reduces the risk of worker

injury compared to manual frame handling.